Look at pull request #3 which was an attempt to make it compatible with MantisBT 1.3, back in 2016. I had started to review it, then got sidetracked and it never went through. It may even be mergeable, but I don't have time to check now. Anyway you should probably start from that point. Adapting 1.3...

We have been suffering from DDOS attacks lately, which probably explains the web site being unresponsive or even not available. We're trying our best to resolve issues, but it is not always possible to do so in a timely manner as we do this in our spare time. Apologies for the inconvenience. PS: fee...

I would advise not to do this kind of configuration, but if you must, try overriding the appropriate language strings in config/custom_strings_inc.php (create the file if needed) with something like switch( helper_get_current_project() ) { case 1: $s_summary = 'Alarm'; break; case 2: $s_summary = 'I...